Today, my girlfriend tried to wake me with a handjob. Because I'm a very light sleeper, I woke straight away and instinctively punched whoever was touching my dick. She forgave me, but I don't think her father ever will once he finds out. FML

Yeah, but not brutal enough to leave a big, nasty bruise; unless of course they bite you, but no dog I've known bites for attention...
Anyways, what if she can't be around dogs because allergies or the fact she may just really hate them?

25- they can be. I've had a dog headbutt me and give me an awful black eye before. It was really just a silly remark. But that's what excuses are for right? Certainly can't hurt OP in this case, if his wife's forgiven him!

Unless she feels like telling her father she was giving him a hand job when it happened, she kinda does. I know I wouldn't want to tell my parents any detail about my sex life. It could easily turn into a funny story for themselves, or maybe shared with a friend, but no parent wants to hear that about their kid.

Why tell every detail? She could just say they had an accident in bed.
Although, I wonder what OP does to his girlfriend when she hugs him in her sleep. Does she have to start being careful about where her hands are going now?

You don't have to tell her dad anything. Don't see her father until the Mark is gone. If you had plans, cancel them. If she lives at home, have her stay over for a few days until its gone. Use your brain.